baber/WOPTO huggingface dataset:
Patent GB-389616-A (GB)
Title: Improvements in and relating to miners' electric safety and like battery lamps
IPC: F21L4/00
Filed: 1932-01-26
Abstract: 389,616. Electric battery-lamps. JONES, T. A., (trading as PATTERSON & CO.), 40, Trafalgar Street, Newcastle-on- Tyne. Jan. 26, 1932, No. 2301. [Class 39 (ii).] In a miner's or like lamp operated by a battery having rigid terminals a and in which a glass cover g disposed over the lamp-bulb is clamped by a ring e to a member d secured to the battery casing, a contact block h for connecting the lamp holder v to the battery terminals is mounted within the ring e on springs t, Fig. 2, which do not form part of the electrical circuit. The contact block h, which is of insulating material such as ebonite, is formed with a central boss o, adapted to extend upwardly through an aperture in a radial flange f of the ring e and has arcuate contacts r<1>, r<2>, r<3> embedded in its lower face. Contacts r<1>, r<2> engage the battery terminals, the contact r<3 >merely providing a wearing surface for the terminals. The contact r<2> extends inwardly to the centre of the block h to contact with a spring p which forms the central contact for the lamp-bulb. The central portion of contact r<2> may be reinforced by a boss j formed on the lower face of the block h. The springs tare secured in radial grooves l in the block hand bear against the flange f of the ring e. The lamp-holder v is fixed to the boss o by screws x, y and is formed with a flanged base which overlaps the edge of the aperture in the flange f of the ring e, thereby retaining the contact block h within the ring e. An insulating washer w is inserted between the base of the holder v and the boss o. The fixing screw x engages an inward extension of the contact r<1> and connects the lamp-holder to one battery terminal. To prevent rotation of the contact block h relative to the ring e a projection on the flange f may engage a recess in the boss o, or vice versa.
Patent GB-779460-A (GB)
Title: Improvements in or relating to tubular electric incandescent lamps
IPC: H01K1/24
Filed: 1955-01-26
Abstract: 779,460. Making tubular electric incandescent lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 26, 1955 [Jan. 26, 1954], No. 2345/55. Class 39(2) A tubular electric lamp for operation on voltages exceeding 24 volts, with a helical filament 6 extending longitudinally of the bulb 1 and supported at its ends and at least two areas between these ends, is characterized by the filament being supported at its extremities between two electrodes 9 and 5 which support glass beads 10 and 10a respectively, the glass bead 10 forming part of a structure comprising the electrode 9 and an additional support wire 11. each of which is sealed into one end of the glass bulb, and the glass bead 10a at the other end of the filament forming part of a structure supported within the lamp bulb by means of only one wire 5 which is sealed into the adjacent end of the bulb, these glass beads supporting closed hooks 14, 18 which, in turn, support the filament at regions intermediate its ends. The wire 11 which is sealed within the bead 10 is bent at its right-hand end and formed with a hook 12 within which is secured a supporting-wire 13 extending parallel with the filament and provided with a hooked extremity 14 embracing the filament. At the other end of the lamp tube a wire 15 sealed only within the bead 10a is provided with a hooked end 16a carrying a supporting-wire 17 embracing the filament by means of a closed hook 18. In making the lamp the complete filament assembly is introduced through the narrowed end A of the vertically positioned tube 1, so that the supply wire 5 extends through the opposite constricted end B. and the offset ends 21 of the wires 9 and 11 are secured in position by an exhaust tube 3 sealed thereon. The end B is next closed by sealing at D, and the lamp exhausted and, if necessary. gas-filled, through the exhaust tube 3 before sealing-off at E. Fig. 3 showsa modification wherein a glass bead 30 has sealed within it an electrode wire 31 an additional bead-supporting wire 32, and an intermediate filament-supporting wire 33. Alternatively, the two wires 32. 33 may be replaced by a single wire extending through the bead, Fig. 2 (not shown).
Patent GB-1148631-A (GB)
Title: Improvements in and relating to linear displacement sensitive transducers
IPC: G01L9/10
Filed: 1967-01-18
Abstract: 1,148,631. Measuring linear displacement, electrically. KAMAN AIRCRAFT CORP. Jan.18, 1967 [Feb.28, 1966], No.2651/67. Addition to 1, 055, 354. Heading G1N. In a modification of the displacement transducer described in parent Specification 1, 055, 354, a non-magnetic electrically conductive plate 109 Fig. 3 is disposed with its planar area normal to the axis of a pair of coils 82, 84 and to one side of the coils instead of between the coils as in the parent Specification, and the plate is movable toward and away from the coils along the axis thereof, the impedance of the coils varying with displacement of the plate, when the coils are connected in a high frequency (e.g. 1 Mc) A.C. energized bridge circuit. The coils are wound in annular slots in a non-magnetic core 86 of dielectric material, e.g. a ceramic, and a non- magnetic dielectric sleeve 100 is positioned around the core and coils, within a shield 102 of magnetic material. Alternatively the coils may be concentrically disposed in a common plane Fig.6 (not shown) or may be axially spaced and have different diameters, Fig.7 (not shown). The coils 82, 84 are connected in adjacent arms of a bridge circuit (220 Fig. 2 not shown) which is energized by an oscillator including a transistor (134) Fig. (not shown), and the unbalance output of the bridge, which corresponds to the amount of displacement of the plate 109, is fed to an amplifier including transistor (260), the gain of which is varied by a load circuit (282) thereof, in a direction tending to maintain a linear relationship between the bridge output and the said displacement. The amplifier and oscillator circuitry are fed from a stabilized voltage source (128).
Patent GB-590523-A (GB)
Title: Improvements in or relating to head rests
IPC: A47C1/10
Filed: 1945-02-02
Abstract: 590,523. Head rests. RITTER CO., Inc. Feb. 2, 1945, No. 2719. Convention date, Jan. 27, 1944. [Class 52 (ii)] [Also in Group XXXII] A head rest device concerned, as in Specifications 590,521 and 590,522, with the means for resiliently and detachably mounting the individual head supporting pads 14 on the bracket arms 12, comprise a flexible disc 22 of rubber or the like in which are moulded a metal ring 23 and a metal sleeve, the latter being in the centre of and at right angles to the plane of the disc 22. The ring 23 is clamped on to a seating 19 in the end 15 of a bracket arm 12, and the sleeve receives a metal shank 26 which is secured to the back of a head rest pad 14, and which frictionally engages the inner walls of said sleeve. In a modification, each of the bracket arms has a separately formed recessed element inserted therein, and the peripheral edge of the flexible disc 22 itself rests on the seating and is clamped in place by a cap-like annular part, and the sleeve is in the form of a hollow bolt which is secured to the disc 22 by a nut.
Patent GB-725299-A (GB)
Title: Improved preparation of double fluorides of titanium and alkali metals
IPC: C01G23/00
Filed: 1953-01-30
Abstract: Alkali metal-titanium double fluoride is produced by reacting an oxidic titanium compound with an alkali metal, preferably potassium compound, reacting the resulting alkali metal titanate with an alkaline earth metal fluoride in an aqueous medium in the presence of an amount of a concentrated mineral acid sufficient to impart to the reaction mass a pH not substantially higher than 5, preferably between 3 and 5, and recovering the alkali metal-titanium double fluoride from resulting aqueous medium, e.g. by filtering the hot acidic reaction mass to remove insolubles, concentrating the hot filtrate to remove excess water, and cooling the concentrated filtrate to effect crystallization therefrom of the desired double fluoride.  Suitable titanium compounds which may be used are the pure oxide, impure oxide such as natural rutile or purified ilmenite, meta-titanic acids and slags containing high percentages of TiO2. The alkali metal compound may be e.g. a hydroxide, carbonate, sulphate, or nitrate, carbonates being particularly preferred.  The reaction to produce titanate may be performed by calcining in a neutral atmosphere at 1700 to 2200 DEG F. preferably 1900 to 2000 DEG F.  About 20 parts of finely divided carbon per 100 parts of the alkali metal compound may be added.  A 2 to 5 per cent excess of the alkali metal compound over that required for a ratio of R2O/TiO2 = 1 (R=alkali metal) is desirable.  In the second stage, the titanate is slurried and a catalyst, for example chloride ion as potassium chloride, may be added.  After the addition of at least 3 molecules of alkaline earth fluoride, the mineral acid is added, hydrochloric, nitric, sulphuric, and phosphoric acid being mentioned, and the latter two preferred.  The temperature is raised and maintained at boiling point for at least 20 minutes, the pH being maintained. Examples of the production of potassium-titanium chloride are given.
Patent GB-233054-A (GB)
Title: Improvements in gas heated bakers' ovens
IPC: A21B1/48
Filed: 1924-02-04
Abstract: 233,054. Vicars, E. L. Feb. 4, 1924. Bakers' ovens.-In a gas-fired travelling oven a more even distribution of the heating-gases from burners 3 is effected by fitting perforated baffle plates 6 between adjacent chain rails 4 and between the outer rails and the side walls of the ovens. The rails are also perforated. The baffle plates may be flat, curved, or may have upturned edges as shown.
Patent GB-1216002-A (GB)
Title: Photographic camera
Inventor: PETERSON DEAN MCCORMACK
IPC: G03B17/42
Filed: 1968-01-18
Abstract: 1,216,002. 002. Photographic cameras.  EASTMAN KODAK CO. Jan.18, 1968 [Jan.18, 1967], No.2814/68. Heading G2A. A photographic camera has a film metering mechanism which comprises a metering pawl 48 for sensing successive metering holes 38 provided for each exposure area of a film 34 and a ratchet engaging tooth 71 movable between an operative position in which it disables the film advancing means and an inoperative position permitting film advance. The tooth is provided on a latch element 58 which also has a depending latch ear 62 which extends into the region of and may be held by a first latching surface 63 of a metering pawl support member;45 or a second latching surface 64 of a resilient tongue arm 46. Upon operation of the film wind at the position shown in Fig. 5, which shows the situation after an exposure, the edge of a film metering hole 38 cams metering pawl out of the hole and disengages the latch between surface 64 and ear 62, a forwardly projecting lug 57 flexing a tongue arm 56 of arm 46. Tooth 71 moves to an intermediate'position latched by engagement of ear 62 with surface 63. When metering pawl 48 enters the next hole in the film, the latch between ear 62 and surface 63 disengages to allow tooth 71 to reach its operative position to engage ratchet wheel 32. The mechanism is reset upon release of the shutter release by a return lever 116 engaging a depending return ear 117 on latch arm 58 to enable engagement of ear 62 with surface 64. A trigger blocking member 105 prevents double exposures, a nose portion 113 entering a hole 79 in trigger member 72. A linking member 65 coupled to latch element 58 rides over a cam surface 114 to rotate member 105 out of the blocking position upon latch element moving to arrest film movement. Shutter lever 18 is operated by actuation of push button shoe 75 coupled to trigger member 72 via shutter operating member 84 and an intermediate lever 89.
Patent GB-229474-A (GB)
Title: Improvements in price indicating weighing scales
IPC: G01G23/22
Filed: 1924-02-04
Abstract: 229,474. Automatic Scale Co., Ltd., and Blick, E. L. Feb. 4, 1924. Computing-apparatus. - In a pricecomputing weighing-scale of the kind described in Specifications 217,324 and 219,355 wherein the weighing capacity of a pendulum mechanism is augmented by loose weights placed on the weights pan, an additional series of price values corresponding to the loose weights is disposed upon a rotatable drum integral with, identical with, or in positive connection with the primary drum and capable of being manually set in agreement with the price per pound of the commodity being weighed. In the form shown in Fig. 1, the automaticallyoperated pointer 9 indicates in known manner against a graduated weight chart 5 and against a manuallyoperated cost drum 6 which may be rotated by a knob 7 so as to display a row 10 of cost values at any desired price per pound. Connected to the drum 6 by gear wheels 13, 14 is an additional cost drum 15 which at each adjustment presents to the salesman a row 17 of cost value figures which are multiples of the price per pound displayed upon the upper drum. The value to be selected from the lower drum depends on the loose weights placed on the weights pan and is read off by the aid of a weight strip 16 fixed to the scale housing. The total value of the commodity is ascertained by adding together the readings taken from the two drums. In a modification, the lower drum is dispensed with, and the rows 17 of value indications corresponding to the loose weights are placed upon the upper drum so as to be displayed at the same time as the corresponding rows 10. In a further modification, Fig. 4, the spindle of the primary drum is extended and carries at the ends two additional drums 27 bearing the multiple cost values for use with the loose weights.
Patent GB-431076-A (GB)
Title: Improvements in tyre building apparatus
IPC: B29D30/30
Filed: 1934-01-27
Abstract: 431,076. Feeding webs. BRIDGE & CO., Ltd., D., Iron Works, Castleton, Lancashire.-(National Rubber Machinery Co. ; Akron, Ohio, U.S.A.) Jan. 27, 1934, No. 2833. [Class 100 (i)] [See also Group XXXIV] A tyre-building machine comprises means for winding lengths of fabric and separating liner on to a stock-roll, means for feeding the fabric on to the building- drum, and automatically-operated means for re-winding the liner on to its storage-roll. As shown in Fig. 1, a turret 16, rotatably mounted on a pedestal 15, carries a series of stock-rolls which can be selectively positioned at A for winding the fabric 23 and liner 24 on to the rolls, and at B for feeding the fabric to the building- drum D. Each stock-roll 22 is carried between a pair of arms 20 swung on brackets 18 fixed to the turret. The liner-roll 29 is mounted on a shaft 33, also carried by the arms 20, a helical spring having its ends connected to the shaft and roller serving to re-wind the liner on to its roll as the fabric is fed to the drum. For feeding the fabric on to the roll 22, a tray 50 with adjustable edge-guides 58 is arranged under the upper run of a belt 56 fitted over rollers 54, 55 which are mounted in extensions of the tray. The latter is pivoted on an upright 45 and is moved into its operative position (shown in full lines in Fig. 1) by means of a treadle 70. A bight or festoon 27 is maintained in the outer convolution of the fabric and liner by means of a roller 26 at the lower ends of the arms 20. To prevent rotation of the roll 22 (by the reaction of the liner-roll spring) when the machine is at rest, the arms 20 are normally urged by springs 41 to the position shown in broken lines in Fig. 1 wherein dogs 39 on the brackets 18 engage rack-teeth 37 on the ends of the roll. For feeding the fabric on to the building-drum, rollers on geared shafts 78, 82, adapted respectively to engage the bight 27 of the fabric and the surface of the drum, are mounted on the ends of a tray 74 which is rocked from the inoperative position (shown in broken lines in Fig. 1) by means of a treadle 117. The tray 74 is also fitted with adjustable edge-guides for the fabric strip and a load-off roll 81 spaced from the drum. The gearing between the shafts 78, 82 is reversible to ensure correct rotation of the roll 22 irrespective of the direction of rotation of the drum. In a modification, the liner is re-wound on to a roll driven by contact with the periphery of the drum.
Patent GB-713481-A (GB)
Title: Improvements in the preparation of rubber dispersions and the manufacture of cyclised rubbers
Inventor: BLOW CLAUDE MONTAGUE
IPC: C08C19/10
Filed: 1952-02-04
Abstract: In the preparation of a mixture of rubber and cyclized rubber, sulphuric acid is reacted upon a rubber dispersion which has been stabilized by a non-ionic or cationic surface active agent to form a stabilized dispersion of cyclized rubber, and thereafter adding the dispersion to a stabilized dispersion of uncyclized rubber. The dispersion may be stabilized by cetyl trimethyl ammonium bromide, lauryl pyridinium chloride, a stearylamine ethylene oxide condensate, or a condensate of ethylene oxide with primary amines derived from tallow fat acids.  The sulphuric acid is preferably added in two stages and the cyclization effected at 100-105 DEG  C. Coagulation may be effected by means of sodium cetyl sulphate. Specifications 634,879, 658,520 and 713,482 are referred to.
Patent GB-1419089-A (GB)
Title: Fibre glass filter devices filters for automotive exhaust gases
IPC: F01N13/04
Filed: 1972-10-26
Abstract: 1419089 Fibre glass paper filter element PPG INDUSTRIES INC 26 Oct 1972 [27 Oct 1971 (2)] 2939/75 Divided out of 1419088 Heading BIT A fibre glass filter comprises a tubular housing, a hollow perforate tubular support member positioned in the housing, a convoluted, tubular fibre glass paper filter element composed substantially of fibre glass and binder mounted on the support member and spaced from the housing to provide a gas space between the housing and the paper, means to introduce gas to the gas space and means to remove gas from the housing through the support member after inward flow through the filter element. Suitably, the housing, filter element and support member are cylindrical and the filter element is confined at each end by gas impermeable end caps. Figure 2 shows a filter comprising a housing 13 having inlet 11 for the gases feeding into an inlet chamber defined between the housing and opposed circular baffle 21. A central perforate support tube 17 is fixed to the downstream side of baffle 21 and extends through the housing and out of the far end 31 thereof to provide a filtered-gas outlet. A plurality of cylindrical, convoluted, resin-impregnated, fibre glass paper filter elements 25, 27 are mounted in parallel on tube 17 for inward flow. Each element has a pair of annular end caps 33, 34, 35, 36. Suitably, the fibre glass paper comprises a resin binder capable of withstanding temperatures up to 500F and the filter element is designed as an 'absolute' filter capable of removing 99.97% of particulates of a size 0.3 microns or greater from a gas stream. A filter apparatus comprising such a thermally stable 'absolute' filter in series with an inertial separator and, optionally, an agglomeration chamber forms the subject of U.K. Specification 1419090 whilst a method of treating exhaust gases by passage through such an apparatus under particular temperature conditions forms the subject of U.K. Specification 1419088.
Patent GB-1074533-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/64
Filed: 1963-01-24
Abstract: 1,074,533. Television. A. A. CONWAY. Jan. 8, 1964 [Jan. 24, 1963], No. 2984/63. Heading H4F. A television receiving apparatus includes two or more picture reproducing screens each with an associated sound reproducer capable of reproducing independent television transmissions, the screens being so arranged relatively to each other that no two screens face in the same direction. Thus an arrangement of two reproducing screens &c. may take the forms depicted in Fig. 1 (not shown), the associated sound reproducers (loud-speakers) (22), (24), preferably, having directional characteristics. An arrangement of six screens may take the hexagonal form of Fig. 2 (not shown). Headphones may, alternatively, or additionally be employed and extension loud-speakers appropriately positioned may be utilized to enhancethe separation of the sound. Certain items such as the mains transformer and some of the circuitry may be common to more than one receiving unit each of which is provided, with its own set of controls.
Patent GB-1047962-A (GB)
Title: Self threading motion picture projector
IPC: G03B1/56
Filed: 1964-01-23
Abstract: 1,047,962. Cine projectors. BELL & HOWELL CO. Jan. 23,1964 [Jan. 25, 1963], No. 3007/64. Heading G2E.  A self-threading cine projector has combined guide and loop-forming means 29, 30 and 43 above and below the gate 34, which may be quickly shifted between the threading and normal running positions, the toothed shuttle 87 for the intermittent film drive being automatically retracted from the gate during the threading operation to allow the film 7 to pass unimpeded. Resiliently biased sprocket guide shoes 26, 75, 76 ensure accurate engagement of the continuously driven sprockets 24, 74 with the film perforations. Guide 30 is carried on plate 31 pivoted at 32 to a link 33 which is connected to rotate with pivot pin 22 of a lever 21 whose end has a finger 23. The inner end of lever 21 carries guide 29, so that when the lever is moved from the open to the threading position guides 29, 30 move closer together. A blocking plate 18 pivoted at 19 prevents insertion of film except when the mechanism is in the threading position, and is moved by finger 23. An actuating lever 59 pivoted at 60 has an end 62 which bears against the lower arm 52 of a plate 46, having arms 48, 49, 50 and 52, which is therefore swung clockwise about the pivot 47 when lever 59 is manually moved anticlockwise to the threading position. Threader plate arm 50 is thus moved to a position as in Fig. 4 to direct film 7 from sound drum 103; spreader plate 54 is moved up to the Fig. 4 position by link 63 between pivot 45 on arm 48 and pin 57 on a lever 55 also pivoting at 47. At the same time members 29, 30 are brought together by the link 64 whose cranked lower end is pivoted at 45, and whose upper end is pivoted at 67 to lever 21,which is thereby rotated clockwise. The linkage system is spring-biased to the open, or running position, and is latched in the threading position by guide bracket 69, carrying a roll 70 and pivoted at 71, which has a hook 72 to engage detent 53 on the arm 52. The mechanism is released by pressure on bracket 69. upper guide 75 is held in the raised position by engagement with detent 83 on a leaf spring 82 anchored to shaft 78 of roller 77, and is freed by the action of lever 59. After threading the shuttle 87 is advanced to engage the film and a film loop restorer 92 is oscillated about shaft 94 by the engagement with an eccentric driven cam of a spring attached to arm 93, until the shuttle teeth enter the film perforation, when said spring disengages. After leaving roll 70, the film enters track 106 beneath fixed guide member 107 carrying a guide roller 108 at its end followed by a handle operated snubbing roll 110.